1. Department of Molecular Biology and Genetics; Democritus University of Thrace; Alexandroupoli Greece
2. Psychiatric and Neurodevelopmental Genetics Unit, Center for Human Genetics Research; Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School; Boston MA
3. Stanley Center for Psychiatric Research; Broad Institute of Harvard and Massachusetts Institute of Technology; Cambridge MA
4. Section of Genetic Medicine, Department of Medicine; University of Chicago; Chicago IL
5. Department of Psychiatry, Social Psychiatry, and Psychotherapy; Hannover Medical School; Hannover Germany
6. Department of Human Genetics; Hannover Medical School; Hannover Germany
7. Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy; Medical University of Vienna; Vienna Austria
8. Department of Child and Adolescent Psychiatry; University of Duisburg-Essen; Essen Germany
9. Department of Genomics, Life and Brain Center, Institute for Human Genetics; University of Bonn; Bonn Germany
10. Vadaskert Child and Adolescent Psychiatric Hospital; Budapest Hungary
11. Institute of Medical Chemistry, Molecular Biology, and Pathobiochemistry; Semmelweis University; Budapest Hungary
12. Department of Medical and Pediatric Sciences; University of Catania; Catania Italy
13. Research Center of the Brain and Spinal Cord Institute; Paris France
14. National Institute of Health and Medical Research, Research Unit 975, Research Center of the Brain and Spinal Cord Institute; Pitié-Salpêtrière Hospital; Paris France
15. Pierre and Marie Curie University Paris 6; Research Unit S 975; Paris France
16. National Rare Disease Reference Center “Gilles de la Tourette Syndrome”; Paris France
17. Department of Neurology; Research Center of the Brain and Spinal Cord Institute; Paris France
18. Department of Clinical and Health Psychology; Utrecht University; Utrecht the Netherlands
19. Department of Psychiatry; VU University Medical Center; Amsterdam the Netherlands
20. Hofstra University School of Medicine; Hempstead NY
21. North Shore-Long Island Jewish Health System; Manhasset NY
22. Toronto Western Research Institute; University Health Network; Toronto Ontario Canada
23. Youthdale Treatment Centers; Toronto Ontario Canada
24. Department of Child Psychiatry; Medical University of Warsaw; Warsaw Poland
25. Department of Neurology; Johns Hopkins University School of Medicine; Baltimore MD
26. Department of Pediatrics; China Medical University Hospital; Taichung Taiwan
27. Graduate Institute of Integrated Medicine; China Medical University; Taichung Taiwan
28. Department of Psychiatry and Behavioral Sciences; Johns Hopkins University School of Medicine; Baltimore MD
29. Department of Functional Genomics, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam; VU University Amsterdam; Amsterdam the Netherlands
30. Complex Trait Genetics, Department of Clinical Genetics; VU University Medical Center; Amsterdam the Netherlands
31. Department of Child and Adolescent Psychiatry; Erasmus University Medical Center; Sophia Child's Hospital Rotterdam the Netherlands
32. Montreal Neurological Institute and Hospital, Department of Neurology and Neurosurgery; McGill University; Montreal Quebec Canada
33. Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior; University of California; Los Angeles Los Angeles CA
34. Department of Psychiatry; University of California; San Francisco San Francisco CA
35. Department of Neurology; Massachusetts General Hospital; Boston MA
36. Division of Cognitive and Behavioral Neurology; Brigham and Women's Hospital; Boston MA